Answer:
D
Step-by-step explanation:
The only other possible meaning I can see is that a2 + b2 means a^2 + b^2. In the case that is a formula that cannot be simplified further, although it could be written as (a + b)^2 - 2ab or (a - b)^2 + 2ab. ... Originally Answered: What is the formula of a2+b2?
Tan205° = .466 tan55° = 1.428 tan25° = .466 -tan25° = " so just tan25
10° is your answer for the angle